50 divided by 60
series solution of y''+(x+1)y'+y=0
sin x + cos x
(ax-b)(ax-b)=(5x-3)
5/x = 5 + 4 +3 +2 +1
y´´*sen(y)+(y´)^2*cos(y)=0 for x
y´´*sen(y)+(y´)^2*cos(y)=0
cos0,79
2-2
3x + 1
------ =1
10